Chair



o e 0. H. LAMBKIN.

FOLDING CHAIR.

Patented Sept. 20, 1887.

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UNITED STATES ATENT tries.

CHARLES H. LAMBKIN, OF NEW YORK, N. Y.

FOLDING CHAIR.

SPECIFICATION forming part of Letters Patent No. 370,265, datedSeptember 20, 18337.

(No model.)

To aZZ whom it may concern.-

Be it known that 1, CHARLES H. LAMBKIN, a citizen of the United States,residing at New York, in the county and State of New York, have inventednew and useful Improvements in Folding Chairs, of which the following isa specification.

This invention relates to folding chairs having a stationary uprightback, and has for its object to provide a novel construction andarrangement whereby the seat can be folded upward against the back andthe front legs can hang downward against the under side of the seat, andthe whole be locked in this folded condition.

To such ends the invention consists in the features of constructionhereinafter described and claimed, reference being made to theaccompanying drawings, in which Figure 1 is a section in the plane a .r,Fig. 4., the chair being unfolded. Fig. 2 is a view similar to Fig. 1,the chair being folded. Fig. 3 is a front view, partly in section, thechair being folded. Fig. 4 is a section in the plane 3 y, Fig. 3, thechair being unfolded. Fig. 5 is a side elevation of a modification.

Similar letters indicate corresponding parts.

The back-fran1e of the chair consists of the bars A A. These bars A Amay be formed continuously with or in one piece with the back legs, B B.The back-frame A A is pro vided with a filling or with braces O D, toform the back of the chair.

The back legs, B, may be steadied by a brace, E.

To the back-frame A A, or to the hind legs, 13, is connected the seat Fby suitable joints or pivots, G. The joints G allow the seat Fto swingor fold toward the back-frame, as seen in Figs. 2 and 3, or to swing orfold away from the back-frame, as seen in Figs. 1, 4, and 5. In case theback-frarneA A is made of wood or soft material the bearings for thepivots G may be formed in metal or other durable supports, II. Thesupports H are screwed or otherwise firmly secured to the backframe.

The front legs, I, are pivoted or jointed to the seat F. Said legs I canbe swung away from the seat F, as seen in Fig. 1, or toward the seat F,as seen in Fig. 2. In the drawings their open or unfolded position.

hinges J are shown as connecting the seat F and front legs, I. It willthus be seen that the seat can be folded upward against the upright backof the chair, while the front legs can hang downward against the underside of the seat, so that the chair is thereby folded into acoinparatively small compass.

To the seat F are hinged or jointed braces or locking-bars K. In thedrawings hinges L are shown as connecting the locking-bars K and theside edges of the seat F. The locking devices K are adapted to engagethe legs B I. In the drawings the lockingbars K are shown as havingrecesses or depressions M N, Figs. 2 and 3. When said recesses M Nengage the legs I B, the seat F and legs I are locked in their openposition. Suitable tongues, shoulders, or projections, O I, are providedon the front legs, I, and on the back-frame or on the back legs. Theseshoulders, tongues, or projections O P are adapted to engage the lookingbars K, as seen in Fig. 4, by which engagement the chair is locked inits open position.

If desired, the chair may be provided with an arm or arms, consisting ofsections ST, Fig. 5, jointed at U to one another and jointed at V \V tothe seat and to the back.

To the back-frame A A or seat F are secured one or more spring arms ordotents, Q, Fig. 2, adapted to catch into or engage recesses It, Fig. 1,in the front legs, I, when the front legs are closed or folded againstthe seat F. The chair is thus locked in its closed position, as shown inFig.

I am aware that tables have been provided with hinged folding legs andlockingbars for holding the legs in their open or unfolded position, andI am also aware that a chair having a back-frame has been provided witha hinged seat and with front legs hinged to the seat, so that the legscan fold against the under side of the seat and the latter be then swungdownward toward the rear legs, suitable bars being hinged to the latterfor engaging the front-leg frame to hold the parts in Such c0nstructionsI therefore disclaim.

hat I claim as new, and desire to secure by Letters Patent, is 1 1. Achair consisting of the stationary rear of said seat, to fold downwardthereupon and to legs, an upright back, a seat hinged to the rear legsto swing upward against the back, the front legs hinged to the seat tofold downward against the under side of the seat, and locking-barshinged to the opposite side edges swing outward between the front andrear legs to lock the parts in position, substantially as described.

2. A chair consisting of the stationary rear legs, an upright back, aseat hinged to the rear legs to swing upward against the back, the frontlegs hinged to the seat to fold downward against the under side thereof,and provided at their lower ends with recesses R, the 15 locking-bars K,hinged to the opposite side edges of the seat, and spring-arms Q,engaging said recesses of the front legs when the latter are foldedagainst the seat, substantially as de' scribed.

-In testimony whereof I have hereunto set my hand and seal in thepresence of two subscribing witnesses.

CHARLES H. LAMBKIN. [L. s]

Witnesses:

W. O. HAUFF, E. F. KAsTENHUBER,

